Characterization of the caspase family in zebrafish.

Characterization of the caspase family in zebrafish.
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DOI:
10.1371/journal.pone.0197966
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发表时间:
2018
期刊:
影响因子:
3.7
通讯作者:
Poulain FE
Poulain FE
中科院分区:
综合性期刊3区
文献类型:
--
作者:
Spead O;Verreet T;Donelson CJ;Poulain FE

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Caspase最早被发现是因为它们在介导细胞程序性死亡和炎症反应中发挥作用,现在已经成为其他细胞和生理过程的关键调节因子,包括细胞增殖、分化、迁移和生存。例如,在发育中的神经系统中,caspase的非凋亡功能已被证明通过调节轴突生长、引导和修剪在神经元回路的形成中发挥关键作用。然而,细胞内caspase活性如何在空间和时间上维持在亚致死水平仍然知之甚少,特别是在体内。由于其透明度和可及性,斑马鱼提供了直接可视化体内caspase激活的独特能力。然而,关于斑马鱼中caspase家族的详细信息尚不清楚。在这里,我们报道了斑马鱼中19个不同的caspase基因的鉴定和特性,并表明caspase在从卵裂到幼虫阶段具有不同的表达谱,表明在胚胎发育过程中具有高度专门化和/或冗余的功能。
First discovered for their role in mediating programmed cell death and inflammatory responses, caspases have now emerged as crucial regulators of other cellular and physiological processes including cell proliferation, differentiation, migration, and survival. In the developing nervous system, for instance, the non-apoptotic functions of caspases have been shown to play critical roles in the formation of neuronal circuits by regulating axon outgrowth, guidance and pruning. How caspase activity is spatially and temporally maintained at sub-lethal levels within cells remains however poorly understood, especially in vivo. Thanks to its transparency and accessibility, the zebrafish offers the unique ability to directly visualize caspase activation in vivo. Yet, detailed information about the caspase family in zebrafish is lacking. Here, we report the identification and characterization of 19 different caspase genes in zebrafish, and show that caspases have diverse expression profiles from cleavage to larval stages, suggesting highly specialized and/or redundant functions during embryonic development.
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